利用地震资料和测井约束反演地层参数──一种测井数据的地震外推方法

众所周知，测井能提供地下介质较准确的岩性参数和具有较高的垂向分辨率，但只局限于井的附近，而地震勘探有较密的横向采样，对岩性的横向变化敏感，本文以测井数据为约束，以地面地震数据为基础，在提高地震勘探反演精度的条件下，对地震岩性模拟技术作了改进，反井中数据扩展到井间，能够大面积提高检测地层岩性参数的构造参数的分辨率和精度。本方法也适用于薄互层储层的研究。

Formation parameter inversion via seismic and logging data:a seismic extrapolation for logging data

It is well known that logging can provide relatively reliable lithological parameters of the subsurface medium and has a higher vertical resolution in the vicinity of wellbore whereas seismic data has a denser lateral sample rate and is sensitive to lateral lithological variations. In t his paper,we use logging data as constraints and seicmic data as a base to extrapolate borehole parameter to crossholes by means of the SLIM technique improved under the condition of no damaging to the precision of seicmic inversion. By so doing, the resolution and precision in detecting formation lithological and structural parameters in larger area are improved. The technique is also suitable for the study of thin and inter-bedded reservoirs.